Block-mold.



W. M. HICKMAN & I. CANNIFF.

BLOCK MOLD. 7

APPLICATION FILED JULY 13, 1916.

1 ,204,35%. Patented Nov. 7, 1916.

2 SHEETS-SHEET I.

W. M. HICKMAN & l. CANNIFF.

BLOCK MOLD.

APPLICATION FILED JULY 13, 1916.

1 204,354. Patented Nov. 7, 1916.

2 SHEETS-SHEET 2- nmwto'm prrn ras arena cries.

WILBUR M. HICKMAN AND ISAAC CANNIFF, OF BATTLE CREEK, MICHIGAN.

BLOCK-MOLD.

Application filed July 13, 1916.

To all whom it may concern:

Be it known that we, WILBUR M. H101:- MAN and Isaac CANNIFF, citizens of the United States, residing at Battle Creek, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements in Block-Molds; and we do declare the following to be a full, clear and exact description of the invention such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention is an improved mold for constructing glaze finish blocks of cement and the like, and the object is to provide a simply constructed and inexpensive yet highly eificient and durable machine of this class.

With the foregoing general object in View the invention resides in certain novel features of construction and in unique combinations of parts to be hereinafter fully described and claimed the descriptive matter being supplemented by the accompanying drawings which constitute a part of this application and in which:

Figure 1 is a perspective view of the improved machine; Fig. 2 is a vertical transverse section thereof; Fig. 3 is a rear elevation; Fig. 4 is a detail perspective of the rear bar of the molded frame and adjacent parts; Fig. 5 is a perspective of a portion of the machine with the frame opened to permit the removal of the completed block; Fig. 6 is a perspective View of this block; Fig. 7 is a. perspective of the improved pallet upon which the block is molded; Fig. 8 is a top plan view of a portion of the molding frame; Fig. 9 is a detail section thereof on the plane of the line 99; and Fig. 10 is a vertical section on line 1010 of Fig. 4: showing the manner in which the angle of the rear bar of the molding frame may be varied.

In specifically describing the construction shown in the drawings above briefly described, similar characters will be employed to designate corresponding parts throughout the several views and reference will be herein made to the numerous elements by their respective indices. To this end the numeral 1 designates a supporting frame which preferably consists of four legs 2 formed by bending the opposite ends of angle metal bars 3 downwardly, the bodies of said bars being depressed as shown and serving to Specification of Letters Patent.

Patented Nov. '3, 1916.

Serial No.-109,121.

support thereon a pallet 4:. The legs are suitably connected and braced as shown at and extending between the rear ends of the bodies of the bars 3 is a horizontal bar 6 which is rigidly secured to said ends. A pair of brackets 7 rest on the bar 6 and are secured thereto by bolts 8, the holes through which said bolts pass being of sufiicient size to permit the brackets 7 to be adjusted angularly in respect to the bar 6 as indicated in Fig. 10, suitable spacers 9 being inserted as disclosed in this figure.

The rear bar 10 of the molding frame 11 is carried by the brackets 7 and has secured to the rear side of its opposite ends a pair said bar and may be adjusted by means of the bolts 13. The outer ends of the plates 12 carry cars 14 cooperating with similar cars 15 and bolts 16 to hinge the curved ends 17 of the frame 11 to the bar 10. The bolt holes through which the bolts 16 pass are of sutficient size to permit adjustment of the plates 12 without tilting the end bars 17 these adjustments being made only when the angle of bar 10 in respect to the pallet is to be changed for the purpose of varying the bevel of the blocks to be constructed. A removable front bar 18 is equipped on its ends with projections 19 received in sockets 20 at the front ends of the end bars 17, said bar 18 being held in place by hand screws or the like 21. All sides of the frame 11 will be suitably constructed to form the completed block B (see Fig. 6) with grooves along two edges and ribs along its other edges.

As clearly shown the pallet 4 is curved throughout its width and fits snugly beneath all sides ofthe molding frame 11, being supported on the bars 3. This pallet and the completed block thereon may be easily removed when the screws 21 are released to permit the bar 18 to be detached,

ends 17 to be swung outwardly as shown in Fig. 5. Any suitable device such as a spring hook 22 may be provided for normally holding the pallet 4 in operative position, but this hook may be quickly released to allow removal of said pallet. The pallet itself is constructed in a unique manner and includes a rectangular frame 23 of L-iron, crossed reinforcing rods 24: being welded or otherwise secured at their ends to the verti- Gal flanges of said frame, and a filler 25 of plastic material is cast within the frame and around the rods 24-. The filler 25 is constructed of cement, fire clay, graphite and sand, ithaving been found that this composition produces a glaze finish on the completed block to better advantage than other materials, the graphite serving to prevent the plasticblock from adhering to the pallet.

A track rod 26 extends longitudinally above the rear bar 10 of frame 11 and is connected by a pair of depending arms 27 to a second rod 28 which is rockably mounted in bearings 29 secured to any suitable part of the frame 11. For illustrative purposes, however, said bearings are shown secured in place by the bolts 16. A sliding plate 80 has one of its edges curled upon itself to provide a guide sleeve'31 traveling on the track rod 26 and at its opposite edge said plate 30 is hinged to a second plate 32 as indicated at 33. At 34: the inner end of the plate 82 is pivoted to an arcuate trowel plate 35 having on its upper side a reinforc- 7 ing bar 36 to which a suitable handle 37 is secured. By grasping the handle 37, the trowel 35 may be moved back and forth along the uncompleted block in the mold 11 to impart the correct shape to the inner surface of said block, and duringthis operation the plates 30 and 32 are moved longitudinally, the guide 31 traveling on the rod 26. The mounting of these parts also permits endwise movement of the trowel 35 which is often desirable. This structure rearwardly out of the way when filling the molding frame 11 with cement or when removing a completed block. v

From the foregolng taken in connection with the accompanying drawings, the construction, manner of operation and advantages of the improved mold will be readily understood but in conclusion we will state that although we have shown and described a number of specific details of construction for accomplishing probably the best results, numerous changes may be made within the scope of the appended claims Without sacrificing the principal advantages of the de- We claim:

1. The combination with a block molding frame, of a track extending along one side of said frame, a slide rockably mounted on said track, and a trowel hingedly connected with said slide and adapted to be moved over the frame to trowel the plastic material therein.

i 2. The. combination with a block molding frame, a track extending along one side thereof, and pivotally connected therewith, a slide member rock-ably and slidably mounted on said track, an attaching plate hinged to said slide member, and a trowel pivoted to said attaching plate and adapted to be moved over the aforesaid frame to trowel the plastic material therein.

8. The combination with a block molding frame, of a pair of bearings carried by one side thereof, a horizontal rod received rockably in said bearings, arms rising from said 7 rod, a track rod carried by the upper ends of said arms, a slide member rockably and slidably mounted on said track rod, an atsaid trowel being adapted to be moved over the aforesaid frame to trowel the plastic material therein.

' l. The combination with a supporting frame including a horizontal bar and means for supporting a pallet inadvance of said bar, of a block frame including a rear bar having brackets adjustably secured to the aforesaid horizontal bar to vary the angular relation of said rear bar in respect to the pallet, a pair of hinge plates contacting rockably with the rear side of said'rear bar, bolts serving to lock said plates and secure them in adjusted position, a pair of end bars for the molding frame loosely hinged to said plates, and a detachable front bar for said molding frame. V In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

WVILBUR M.'HICKMAN. ISAAC CANNIFF.

V Witnesses: 7

CATHERINE M. FORD, CHARLES F. MCKENZIE.

Copies of this patent may be obtained for five cents each, by addressing the-commissioner of Patents,

Washington, I). G. r 

